安全联盟这种网站建设,临沂建设局官方网站,十大最耐看装修风格,热点 做网站和营销 我只服他物理引擎系统-ode
目录
物理引擎系统-ode
一、物理引擎系统-ode——processIslands
二、物理引擎系统-ode——processIslands
三、物理引擎系统-ode——processIslands
四、物理引擎系统-ode——processIslands
五、物理引擎系统-ode——processIslands 一、物理引…物理引擎系统-ode
目录
物理引擎系统-ode
一、物理引擎系统-ode——processIslands
二、物理引擎系统-ode——processIslands
三、物理引擎系统-ode——processIslands
四、物理引擎系统-ode——processIslands
五、物理引擎系统-ode——processIslands 一、物理引擎系统-ode——processIslands
static void processIslands (dxWorld *world, dReal stepsize) { dxBody *b,*bb,**body; dxJoint *j,**joint; // nothing to do if no bodies if (world-nb 0) return;
二、物理引擎系统-ode——processIslands // make arrays for body and joint lists (for a single island) to go into body (dxBody**) ALLOCA (world-nb * sizeof(dxBody*)); joint (dxJoint**) ALLOCA (world-nj * sizeof(dxJoint*)); int bcount 0; // number of bodies in body int jcount 0; // number of joints in joint
三、物理引擎系统-ode——processIslands // set all body/joint tags to 0 for (bworld-firstbody; b; b(dxBody*)b-next) b-tag 0; for (jworld-firstjoint; j; j(dxJoint*)j-next) j-tag 0; // allocate a stack of unvisited bodies in the island. the maximum size of // the stack can be the lesser of the number of bodies or joints, because // new bodies are only ever added to the stack by going through untagged // joints. all the bodies in the stack must be tagged! int stackalloc (world-nj world-nb) ? world-nj : world-nb; dxBody **stack (dxBody**) ALLOCA (stackalloc * sizeof(dxBody*));
四、物理引擎系统-ode——processIslands for (bbworld-firstbody; bb; bb(dxBody*)bb-next) { // get bb the next enabled, untagged body, and tag it if (bb-tag || (bb-flags dxBodyDisabled)) continue; bb-tag 1;
// tag all bodies and joints starting from bb. int stacksize 0; b bb; body[0] bb; bcount 1; jcount 0; goto quickstart; while (stacksize 0) { b stack[--stacksize]; // pop body off stack body[bcount] b; // put body on body list quickstart:
五、物理引擎系统-ode——processIslands // traverse and tag all bodys joints, add untagged connected bodies // to stack for (dxJointNode *nb-firstjoint; n; nn-next) { if (!n-joint-tag) { n-joint-tag 1; joint[jcount] n-joint; if (n-body !n-body-tag) { n-body-tag 1; stack[stacksize] n-body; } } } dIASSERT(stacksize world-nb); dIASSERT(stacksize world-nj); }
